Conservation Status of the Fish Fauna in the Danube Delta Marine Zone

2017 ◽  
pp. 443-472
Author(s):  
Carmen Georgeta Nicolae ◽  
Magda Ioana Nenciu ◽  
Valodia Maximov ◽  
Dana Popa ◽  
Monica Marin ◽  
...  
Keyword(s):  
Conservation Status ◽  
Fish Fauna ◽  
Danube Delta ◽  
Marine Zone

scholarly journals Fishes of Paranaguá Estuarine Complex, South West Atlantic

2012 ◽  
Vol 12 (3) ◽  
pp. 226-238 ◽  
Author(s):  
Ana Carolina dos Passos ◽  
Riguel Feltrin Contente ◽  
Ciro Colodetti Vilar de Araujo ◽  
Felippe Alexandre Lisboa de Miranda Daros ◽  
Henry Louis Spach ◽  
...  
Keyword(s):  
Conservation Status ◽  
Fish Fauna ◽  
Brazilian Coast ◽  
Large Dataset ◽  
Ecological Information ◽  
South West ◽  
Minor Part ◽  
Global Biodiversity ◽  
A Minor ◽  
Incomplete Sampling

The objective of this work was to present an updated checklist of the currently known fishes in the Paranaguá Estuarine Complex (PEC) and provides comments on conservation status for the treated species. We used a large dataset derived from a pool of studies which have been conducted within there along the last 30 years. Each study was based on monthly samplings and conducted in several estuarine habitat; thus, the pool covers practically all estuarine habitats and takes into account the seasonal cycle in the system. The PEC ichthyofauna represents a mixture between that fauna typical from the tropical Brazilian coast and that with affinities of temperate Argentinean and Uruguayan zones. The PEC harbors a rich fish fauna of 213 species, inserted in the families that are common along the Brazilian coast. Only a minor part (8%) of the PEC fish fauna was evaluated as regards the conservation status, mostly because of the lack of basic biological and ecological information for most species. Despite part of the among-estuaries differences are due to different and incomplete sampling efforts, the richness in the PEC is surprisingly higher than other systems in Brazil and around world, which emphasize the importance of the region for global biodiversity conservation.

scholarly journals Update of Ichthyofauna and its Conservation Status in the Aghien Lagoon, Côte d’Ivoire

2019 ◽  
Vol 77 (4) ◽  
pp. 253-262
Author(s):  
Koffi Félix Konan ◽  
Sonan Romuald Assi ◽  
Koffi Charles Boussou ◽  
Germain Gourène
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Conservation Status ◽  
Fish Fauna ◽  
Fish Population ◽  
Iucn Red List ◽  
Red List ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Very High

Abstract This study focused on the diversity of fish fauna, its conservation status and its vulnerability in the Aghien freshwater lagoon (southeast of Côte d'Ivoire). For the fish data collection, two sampling approaches were used: experimental fishing and artisanal fishing. As a result, 80 species observed in this lagoon are distributed into 55 genera, 27 families and 10 orders. The best represented orders are the Perciformes, Siluriformes, Osteoglossiformes, Characiformes, Cyprinodontiformes and Pleuronectiformes. The Cichlidae, Mormyridae and Clupeidae represented the best diversified family. With an occurrence of 100%, the most frequent species are: Brycinus longipinnis, Chrysichthys nigrodigitatus, Pellonula leonensis, Schilbe intermedius and S. mandibularis. In the whole fish population, according to IUCN red list, four species where described as Near Threatened (Coptodon walteri, Marcusenius furcidens, Galeoides decadactylus and Cynoglossus senegalensis), four as Vulnerable (B. brevis, Rhexipanchax nimbaensis, Enteromius raimbaulti and Tilapia busumana) and one as Endangered species (Pseudotolithus senegalensis). These categories of species that have a conservation interest according to the IUCN Red List represent respectively 10.26% of the whole population. Fish population of the Aghien Lagoon are divided into seven classes ranging from “low” to “very high” vulnerability, regarding the vulnerability to stress due to fishing pressure.

scholarly journals The Conservation Measures of NATURA 2000 "Someşul Rece" Site Management Plan

2016 ◽  
Vol 73 (2) ◽  
pp. 295
Author(s):  
Marian Proorocu ◽  
Mădălina Miclăuş ◽  
Sînziana Paulic ◽  
Sonia Bodan ◽  
Andreea Popa
Keyword(s):  
Conservation Status ◽  
Fish Fauna ◽  
Natura 2000 ◽  
Management Plan ◽  
Beech Forests ◽  
Natural Habitats ◽  
Important Species ◽  
Apuseni Mountains ◽  
Conservation Measures ◽  
Protected Natural Areas

Natura 2000 is a European network of protected natural areas including a significant number of natural habitats and wild species for the interest of comunnity. Natura 2000 ROSCI 0233 "Someşul Rece"  Site is situated in the south-western county of Cluj, on the administrative territory of Măguri-Răcătău and Ierii Valley. It has an area of 8529 ha and is a framed area of the Apuseni Mountains Alpine bioregions. The site preserves the following natural habitats: Rough mountain beech forests Asperulo-Fagetum, beech forests of Luzulo-Fagetum, forests acidophilous Picea Abies mountain region and protect important species and active fish fauna, flora and fauna of the Apuseni Mountains. It is also home for several species (mammals, amphibians, fish and beetles) like: lynx, wolf or otter. The conservation measures of Natura 2000 Somesul Rece Site, elaborated in order to protect the habitats and the species are part of the management plan. These measures were developed in close connection with the conservation status of habitats and species, but also taking into account the needs of local communities. These measures include: maintaining habitats in favorable conservation status; maintain the current habitat areas; preventing and combating poaching and overfishing;ensuring peace in areas of rock (for large mammals).

The Lower Danube River–Danube Delta–North West Black Sea: A pivotal area of major interest for the past, present and future of its fish fauna — A short review

2016 ◽  
Vol 545-546 ◽  
pp. 137-151 ◽  
Author(s):  
Doru Bănăduc ◽  
Sonia Rey ◽  
Teodora Trichkova ◽  
Mirjana Lenhardt ◽  
Angela Curtean-Bănăduc
Keyword(s):  
Black Sea ◽  
Fish Fauna ◽  
Short Review ◽  
Danube River ◽  
Danube Delta ◽  
North West ◽  
The Past ◽  
Major Interest ◽  
River Danube ◽  
West Black Sea

scholarly journals Conservation status of the North American fish fauna in fresh water

1990 ◽  
Vol 37 (sa) ◽  
pp. 79-85 ◽  
Author(s):  
J. E. Williams ◽  
R. R. Miller
Keyword(s):  
Fresh Water ◽  
North American ◽  
Conservation Status ◽  
Fish Fauna ◽  
The North

scholarly journals Fish fauna from the Paranapanema River basin, Brazil

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Lucas Ribeiro Jarduli ◽  
Diego Azevedo Zoccal Garcia ◽  
Ana Paula Vidotto-Magnoni ◽  
Armando Cesar Rodrigues Casimiro ◽  
Norberto Castro Vianna ◽  
...  
Keyword(s):  
River Basin ◽  
Native Species ◽  
Conservation Status ◽  
Fish Fauna ◽  
Main Channel ◽  
Conservation Strategies ◽  
Management Actions ◽  
The Family ◽  
Upper Paraná River ◽  
Upper Paraná River Basin

Abstract: The Paranapanema River is an important, extensively explored tributary of the Upper Paraná River basin. The fish fauna of the Paranapanema River has been investigated since the 1990s; however, no study has characterized the richness of fish species throughout the basin, including the main channel of the river, marginal lagoons, its tributaries, and sub-tributaries. Thus, we performed a review with 90 independent studies conducted at the upper, middle, and lower sections of the basin. We recorded 225 species, of which 165 were native, and 60 were non-native. We found that 77% of the species within the basin are composed by Siluriformes and Characiformes. Cichliformes had a significant number of non-native species established in impoundment sections of the basin. Incidence-Based Estimators (Bootstrap and Chao 2) demonstrated that the richness of native species is still underestimated. Some native (e.g., Hypostomus ancistroides) and non-native species (e.g., Plagioscion squamosissimus) are widely distributed in the basin, while others had a more restricted distribution. Among the registered species, the family Bryconidae had the highest number of representatives with threatened conservation status. In addition, we observed that the Capivara Reservoir and its tributaries were the most sampled regions, with the majority of studies performed in the Lower Paranapanema basin. The species richness recorded in large tributaries, such as Tibagi, Cinzas, Congonhas, and Pirapó rivers is critical for maintaining the fish fauna in the Paranapanema River. Our contribution may be used to support management actions and conservation strategies, as well as to indicate regions in the basin that need to be better inventoried.

scholarly journals Conservation Status of Fish Fauna in the Ivo River Basin Southeast, Nigeria

2021 ◽  
Vol 4 (6) ◽  
pp. 03-07
Author(s):  
ASIEGBU Victoria Onyebuchi ◽  
OYEDIRAN Ajiboye Gabriel ◽  
EZEKWE Ifeanyichukwu Clinton
Keyword(s):  
River Basin ◽  
Conservation Status ◽  
Fish Fauna

scholarly journals Ichthyofauna in the last free-flowing river of the Lower Iguaçu basin: the importance of tributaries for conservation of endemic species

ZooKeys ◽  
2021 ◽  
Vol 1041 ◽  
pp. 183-203
Author(s):  
Suelen Fernanda Ranucci Pini ◽  
Maristela Cavicchioli Makrakis ◽  
Mayara Pereira Neves ◽  
Sergio Makrakis ◽  
Oscar Akio Shibatta ◽  
...  
Keyword(s):  
Ictalurus Punctatus ◽  
Endemic Species ◽  
National Park ◽  
Conservation Status ◽  
Fish Fauna ◽  
Hydroelectric Power Plant ◽  
Main Channel ◽  
Hydroelectric Power ◽  
River Stretch ◽  
Iguaçu River

The fish fauna from the Lower Iguaçu River and tributaries upstream of the Iguaçu Falls, the last free-flowing river stretch, were investigated. Twenty five sites in tributaries and the main channel were sampled between 2010 and 2016 using several kinds of fishing gear. The species were categorized according to their size, origin, and conservation status. Species richness and abundance in the main channel and tributaries were compared. In total, 87,702 specimens were recorded, comprising 76 species, 25 families, 53 genera, and eight orders. Characiformes and Siluriformes were the richest orders, representing 92% of the total specimens; Characidae, Cichlidae, Pimelodidae, and Loricariidae were the richest families. The fish fauna was composed of small and medium-sized species and included endemic (42%), autochthonous (24%), allochthonous (21%), and exotic (9%) species, as well as hybrids (4%). Significant differences in the relative numerical abundance of species were found among sites. Ancistrus mullerae and Rhamdia branneri (endemic) were indicator species for tributaries inside of Iguaçu National Park (INP), while Phalloceros harpagos (autochthonous) and Ictalurus punctatus (exotic) for tributaries outside of INP and Odontesthes bonariensis (allochthonous) for the main channel. The last dam-free stretch of the Lower Iguaçu River and tributaries upstream the Iguaçu Falls exhibits a rich endemic fish fauna, including some rare, endangered species (Steindachneridion melanodermatum, Gymnogeophagus taroba, and Psalidodon gymnogenys). These findings are essential to predict and understand the effects caused by the new Baixo Iguaçu Hydroelectric Power Plant and highlight the importance of tributaries and Iguaçu National Park for conservation of endemic species.

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